How to Show Progress Dialog in Android

How to show progress dialog in Android?

You better try with AsyncTask

Sample code -

private class YourAsyncTask extends AsyncTask<Void, Void, Void> {
    private ProgressDialog dialog;

    public YourAsyncTask(MyMainActivity activity) {
        dialog = new ProgressDialog(activity);
    }

    @Override
    protected void onPreExecute() {
        dialog.setMessage("Doing something, please wait.");
        dialog.show();
    }
    @Override
    protected Void doInBackground(Void... args) {
        // do background work here
        return null;
    }
    @Override
    protected void onPostExecute(Void result) {
         // do UI work here
        if (dialog.isShowing()) {
            dialog.dismiss();
        }
    }
}

Use the above code in your Login Button Activity. And, do the stuff in doInBackground and onPostExecute

Update:

ProgressDialog is integrated with AsyncTask as you said your task takes time for processing.

Update:

ProgressDialog class was deprecated as of API 26

Show ProgressDialog Android

Declare your progress dialog:

ProgressDialog progress;

When you're ready to start the progress dialog:

progress = ProgressDialog.show(this, "dialog title",
    "dialog message", true);

and to make it go away when you're done:

progress.dismiss();

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Here's a little thread example for you:

// Note: declare ProgressDialog progress as a field in your class.

progress = ProgressDialog.show(this, "dialog title",
  "dialog message", true);

new Thread(new Runnable() {
  @Override
  public void run()
  {
    // do the thing that takes a long time

    runOnUiThread(new Runnable() {
      @Override
      public void run()
      {
        progress.dismiss();
      }
    });
  }
}).start();

Android - how to show progress dialog while service is running?

create broadcast messages when you want to show or hide progress bar from your service:

Intent i = new Intent("yourPackage.SHOW_Progress");
sendBroadcast(i);

then create broadcast receiver and handle received messages:

public class MyReceiver extends BroadcastReceiver{
     @Override
    public void onReceive(Context context, Intent intent) {
         MainActivity mainActivity = ((MyApplication) context.getApplicationContext()).mainActivity;
         mainActivity.showProgress();
    }

}

and inside your mainActivity create method for show or hide progress bar

How to display a ProgressDialog and dismiss it when finished doing a job

Move pd.dismiss() to the bottom of async block.

But don't forget to run it on UI thread activity.runOnUiThread { pd.dismiss() }

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